JB/T 10358-2002 Water-cooled cables for industrial electric heating equipment
Some standard content:
ICS25.180.10
2002-07-16
JB/T103582002
2002-12-01
This standard is proposed by China Machinery Industry Federation. This standard is submitted by National Technical Committee for Standardization of Industrial Electric Heating Equipment (CSBTS/TC121) JB/T10358-2002
This standard is drafted by: Xi'an Electric Furnace Research Institute, Jiangsu Yulong Metallurgical Electric Furnace Accessories Factory, Beijing Electrical Technology and Economic Research Institute, Wuxi Ninglong Metallurgical Electric Furnace Accessories Factory, Yixing Zilong Metallurgical Electric Furnace Accessories Factory, Beijing University The main contributors to this standard are: Liu Xiping, Hu Guocai, Guo Li, Bao Sheng, Pang Quanfa, Wen Liyi. 1 Scope
Water-cooled cables for industrial electric heating equipment
JB/T10358—2002
This standard specifies the requirements for high-current water-cooled cables for industrial electric heating equipment (hereinafter referred to as water-cooled cables") with rated voltage below 3kV (including 3kV), current frequency from DC to 10kHz, and nominal cross-sectional area of 100mm2~700mm2, including model, specification, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage. This standard is applicable to AC and DC steelmaking arc furnaces, Ladle refining furnace. Water-cooled cables for short-circuit networks of submerged arc furnaces, electric slag furnaces, etc., and water-cooled cables connected to induction furnace coils.
2 Normative references
The clauses in the following documents are applicable to this standard and are the original version of this standard. All dated referenced documents, even all subsequent amendments (excluding errata) or revised versions are not applicable to this standard. However, parties that reach an agreement based on this standard are encouraged to study whether the latest versions of these documents can be used. For all dated referenced documents, the latest versions are applicable to this standard. GB/T GB/T 2900.10—1984 Electrical terminology Cable (IDT [EC 60)50) (461): 1984) GB/T 2900.23—1995 Electrical technical terms Industrial electric heating equipment (NEQ C60050-841: 1983) GB/T 3048.4-1994 Electrical properties test methods for wires and cables Conductor DC resistance test (TCGIFC60885-2) GB 4239—1991 Cold-rolled stainless steel and heat-resistant steel strip GB 5231—1985 Chemical composition and product shape of processed copper (NEQ T0CT859: 1978) GB/T 5577—1985 Synthetic rubber grade regulations GB GB/T 5959.2—1998
3 Safety of electric heating equipment Part 2: Particular requirements for electric arc furnace equipment (IDT[ECT0519-4:1995) GB5959.3-1988 Safety of electric heating equipment Part =: Particular requirements for induction and conductive heating equipment and induction olefin refining equipment (EQV[FC60519-3:1985)
GB/T10065.1—1988
GB/T 1G66.2—1988
Test methods for electric heating equipment - General part (EQVTEC60398:1072) Test methods for electric heating equipment - Induction furnaces (EQV[C60396:1987) GB/T 10065.3—198R
Test methods for electric heating equipment Coreless induction furnace (egvIHC0646:1986) GB/T 10067.1-~1983
General part of basic technical conditions for electric heating equipment GB/T 10067.2—198B
Basic technical conditions for electric heating equipment Steelmaking arc furnace GB12970.2—1991 Electrical soft copper stranded wire Part.: Soft copper stranded wire HG/T2184—1991 Rubber hose for water supply (ne9ISO1403:1986) JB/T9691—1999 Method for compiling product models of electric heating equipment YB/T11—1933 Stainless steel wire for springs
3 Terms and definitions
The terms and definitions established in GB/T2900.10—1984 and GB/T2900.23—1995 and the following terms and definitions apply to this standard. 3.1
water-cooled electric cablesWater-cooled cables
Industrial electric heating equipment uses water to cool large cross-section flexible current carriers. It is mainly composed of outer sleeve, soft conductor, core, differential spring, clamp, end connector, protective ring and other components. 3.2
out water hase
JE/T 10358---2002
A synthetic rubber tube with a reinforced sandwich layer that can withstand the operating water pressure and mechanical force. 3.3
copper wire strandingA single-strand or multi-strand soft cable made of soft copper strands with small diameter and high conductivity, 3.4
central core
Used in water-cooled cables with large nominal cross-sectional area. Flexible tubular products or other structures that support and position soft conductors and bear the tension of the connecting part of the water-cooled cable:
Differetial spring
Non-magnetic stainless steel parts used to connect the core tube and the terminal joint to level and reduce the bending stress of the water-cooled cable during operation; 3.6
Fixing band
A special piece made of non-magnetic stainless steel used to fix the outer sleeve and/or protective ring, and a locking device; 3.7
Terminal
Processed according to design requirements, crimped or nailed with the soft conductor, used to connect with other conductors, and the surface of the connection is tinned, silver-plated, etc. Electrolytic steel products:
Protective bumper
A rubber ring that is sleeved on the outermost layer of the water-cooled cable to reduce the external wear of the water-cooled cable and buffer vibration. 3.9
Thermal protection
Thermal protection layer wrapped or vulcanized with dirty high temperature materials on the outside of water-cooled cables. 3.10
Geometric mean radius geometriemean Tadius (GMR) The average radius of the soft conductor layer in the cross section of water-cooled cables. 3.11
Minimum bending radius The limit bending radius allowed when the water-cooled cable is bent by external force. 3.12
Central corcless type A water-cooled cable structure that only twists the multiple soft conductors themselves without the support and positioning of the core tube. 3.13
Rope-lay type
A water-cooled cable structure that uses multiple soft conductors or multiple soft conductors with leakage insulation to twist themselves at a certain spiral angle or wrap them in a single layer outside the core tube.
ConcentricLaytype
A water-cooled cable structure in which multiple strands of soft conductors are wound on a core tube at a certain spiral angle. 3.15
Flame-resistance type
A water-cooled cable structure with a heat protection layer on the outer surface. 2
4 Product classification
4.1 Varieties and specifications
.B/T 10358-2002
Water-cooled cables are divided into four varieties and multiple specifications according to the structural type and nominal load area. The specific varieties, specifications and main technical parameters are shown in Table 1 and Table 2. If there are special requirements, they can be made according to 9.2. Table 1 'Water-cooled cable for induction furnace
SLGI0H
SLG120
SLG180
SLG201
SLG254
SLG300
SLG350
SLG400
Nominal cross-sectional area
Cut current capacity
Water flow
Termination number
Termination number and its opening number, size, and position of water outlet shall be agreed upon by both parties
SLG500
Note 1: The current carrying capacity in the table refers to the industrial surface product. With the increase of frequency, the current carrying capacity should be reduced accordingly. The specific parameters can be specified in the enterprise product standards. Note 2: The water flow in the table refers to the power frequency, and the conditions for determination are length 4m, temperature rise 10K, current density 15mm. "Electric arc furnace, ladle furnace, submerged arc furnace and electric slag furnace water-cooled cable table 2
SL100n
SL1200bzxZ.net
SL1600
SL2000
SL2400
SL3000||t t||SJ3600
SLA500
SL5000
SL5500
SL6000
SL6500
SL7000
Nominal cutting area
Minimum radius of curvature
Current-carrying through-disk
Water current mother
Termination hot stamping
1 (M, $.
1M, s:
1(M,$)
2 (M,S)
2 (M,$)
34M,S)
4 (M, s)
5(M,s)
$ (M,s )
6 (M, S)
8 (M, $)
9(M,)
This table lists the cluster structure as an example. Other types can be represented by adding the type or characteristic after "SL". Note 1:
For example, the model of the core type 1000mm2
is "SLT1OD\, and the other parameters are the same as those in this table. Note 2: The current carrying capacity in the table refers to the power frequency. When the power supply is DC, the current density can be selected according to 6.0A/mm2 cross-sectional area. The specific parameters under other frequencies can be specified in the enterprise product standards. Note 3: The water flow rate in the table refers to the industrial frequency, and its determination conditions are length 9ml, temperature rise 10K, current density 45A/mm3
JB/T 10358-2002
4.2 Model
Referring to the provisions of JB/T9691--1999, the model of water-cooled cable is stipulated as follows: No.
Enterprise code
Nominal cross-sectional area, single symbol is mm2
Type or characteristic code, represented by Chinese pinyin letters, represented by Chinese pinyin letters J~·Bundled type (generally can be omitted): Type code:
T——Core type:
W. Pipeless type.
G—For induction furnace:
Characteristic code:
Flame retardant type,
4.3 Main parameters of water-cooled cable
Nominal cross-sectional area, unit:
Current carrying capacity, unit: kA:
Rated voltage, unit: kV:
Water flow, unit: mh:
Minimum curvature diameter, unit:
Mean radius GMR, unit:
Working water pressure, unit: MPa:
Length, unit:
Weight, unit: kg~
5 Technical requirements
5.1 General requirements
5.1.1 The working environment, cooling water quality, water pressure and inlet and outlet water temperature of water-cooled cables shall comply with the corresponding provisions of 5.1.2 and 5.1.3 in GB/10067.1--1988
5.1.2 When water-cooled cables are in an environment of high temperature radiation and spark splashing for a long time, flame-retardant structures shall be adopted. 5.2 Design and manufacturing requirements
5.2.1 The outer sleeve and the core tube with a large cross-section shall adopt a general-purpose rubber hose for water delivery with a fabric reinforcement layer, and its performance, size and quality shall comply with the provisions of HG/T2184-1991.
5.2.2 The material of the soft conductor is recommended to be GB5231--19E5 T2. The recommended specifications are T3R1 and TJR3 standard bare pin stranded wire in GB12970.2-199[
5.2.3 Each strand of soft conductor should be close to the core tube according to the design requirements, and be spirally wound along the length direction. The pitch is recommended to be 900mm~2000mm. The radius of curvature after winding should meet the requirements of Table 2, and when the water-cooled cable is bent to the minimum curvature radius, the bending part cannot be loose. 5.2.4 The differential spring should be made of non-magnetic stainless steel material. It is recommended to use stainless steel wire specified in YB/T11-1983. It should be able to reduce the mechanical stress on the soft conductor during the operation of the water-cooled cable, buffer the electric force and ensure good cooling water circulation. 4
Brr10358-2002
5.2.5 The recommended material for the end connector is T2 in Table 1 of GB 523[-1985. The surface of the terminal joint should be smooth and flat, without cracks, burrs and sharp corners. The surface roughness R of the conductive plane should not be less than 3.2μm, and the surface contact area should not be less than 60%. The recommended thickness of sugar tweezers is 0.02mm~0.04mm: the recommended thickness of silver plating is 0.0015mm~0.0020mm. There should be no (silver) pile or exposed copper, and manual processing of the surface is not allowed. Other coating materials are in accordance with the corresponding regulations: The number of openings, size and basic positions of the inlet and outlet of the SL series terminal joints are recommended to be selected according to Figure 1 and Table 3 to ensure the interchangeability of the corresponding joints. If necessary, the three basic positions of the inlet and outlet are allowed to be selected and combined with each other. When there are special requirements for the position of the terminal joint, they can be proposed in 9.2. xe
\×
Figure 1 Recommended end fitting opening size and basic inlet and outlet
End fitting number
2 (M, s)
3 (M, S)
4 (M, S)
a (M, s)
s (M, s)
Recommended value of end fitting hole number and size
Rc 1/2
6×#14
6x $14
8x @14
8x @18
10×+22
Note 1: The position of the inlet and outlet pipe joints is usually on the end face of the end joint: when it is in the middle of the opening on the surface of the end joint, it is indicated by M; when it is on the side of the end joint, it is indicated by S.
Note 2: The "" in the middle α indicates the number of openings. 5.2.6 The cloud hoop should be made of non-magnetic material. It is recommended to use austenitic stainless steel in Table 1 of GB/T4239-1991. The overlap should be flat, and the overlap should not be warped or misaligned. The clamp should be locked. It should be ensured that the outer pipe sleeve is firmly fixed to the end joint. The clamp can also be used to fix the protective ring.
JB/T 1035B2002
5.2.7 The protective ring should be made of synthetic rubber material: It is recommended to use synthetic rubber with GB/T5577-1985 or other brands. The spacing of the protective rings should ensure that the water-cooled cable is free from wear and tear and shock and vibration. 52.8 The length of the water-cooled cable shall be agreed upon by the supply and demand parties (see 9.2) 5.3 Performance || tt || 5.3.1 The DC resistance of the water-cooled cable shall be specified in the enterprise product standard. 5.3.2 The rated voltage of the water-cooled cable shall be specified in the enterprise product standard. 5.3.3 The actual current-carrying capacity of the SL agent water-cooled cable can be overloaded by 20% compared with the recommended value in Table 2. When there are other requirements, they can be proposed in 9.2. 5.3.4 The water flow rate of the water-cooled cable should be in accordance with the provisions of Tables 1 and 2. 5.3.5 The end connectors of the water-cooled cable and the soft conductor should be cold-pressed or pinned. In order to ensure sufficient mechanical strength and reliable electrical contact, tensile tests should be carried out as required. The test tensile force for a nominal cross-sectional area of 20mm is! 5kN, on this basis, the test tensile force value increases by 5kN for every increase in the nominal cross-sectional area of the water-cooled cable [GDmm2] 5.3.6 The maximum surface temperature rise of the water-cooled cable [including the connection] should not exceed 40K, 5.3. The flame-retardant water-cooled cable should be able to work reliably in the environment of high temperature radiation and fire splashing! 5.4 Safety requirements
In addition to the following requirements, the safety requirements of water-cooled cables shall comply with the relevant provisions of GB5959.2--1998 and GB5959.3--1988, 5.4.1 The outer jacket of the water-cooled cable should have good sealing performance and should be able to pass the withstand voltage test of its corresponding rated voltage under normal working conditions.
5.4.2 At a relative humidity of 90% and an air temperature of 20℃±5℃, the insulation resistance of the terminal joint and the soft conductor to the outer surface of the outer jacket should be no less than 1MQ. 5.4.3 The DC resistance value of the water-cooled cable should be measured regularly. When the measured resistance value is greater than 50% of the original resistance value, it should be replaced. 5.4.4 The water-cooled cable should be able to operate normally under a water pressure of 0.5MPa, and the outer jacket hose should not have abnormal phenomena such as bubbling and local increase in outer diameter. 5.4.5 The formation of air pools in the cooling water circuit should be avoided. 5.5 Requirements for complete sets
Unless otherwise required (see 9.2), the complete set supply scope of each water-cooled cable is as follows: Water-cooled cable
6 Test method
6.1 Measurement of insulation resistance
According to 7.1.4.1 of GB/T10066.1-1988, the measurement is carried out between the soft conductive electrode and the good electrode. The additional electrode refers to the graphite coating of the water tank, the wrapped metal foil or other devices or measures that form equipotential on the outer surface of the outer casing. When the water plant is used as an additional electrode for measurement: The length of the water-cooled cable at both ends extending from the water surface shall not be less than 200mm. The number and length of the tested samples shall be specified in the enterprise product standards. 6.2 Insulation withstand voltage test
The test shall be carried out in accordance with the provisions of GB/T10066.1-1988117.1.4.2, but the test shall be carried out between the soft conductor and the additional electrode. The additional electrode refers to water-added, graphite coating, wrapped metal foil or other devices or measures that form equipotential on the outer surface of the outer casing. When using a water tank as an additional electrode for measurement, the length of the two ends of the water cable extending out of the water surface shall not be less than 200mm. The number and length of the tested samples shall be specified in the enterprise product standard: 6.3 Measurement of DC resistance
According to GE/T 3048.4-1994
6.4 Water pressure test
Place the water-cooled cable on a special test bench, block the joint through hole at one end, and then connect the water pipe at the other end, pressurize it to 0.6MPa: 6
Keep it for 15min. There should be no leakage, and the outer sleeve hose should not have bubbling and local outer diameter increase. Abnormal phenomenon, 6.5 Tensile test
TBT10358-2002
Connect the connected soft conductor and the joint to the two connection terminals of the tensile machine respectively, and start the tensile machine to reach the test tension specified in 5.3.5. There should be no looseness or falling off at the connection. 6.6 Temperature rise measurement
According to 6.13 of GB/T10067.2-1988, 5.10 of GB/T10066.2-1988 or 5.10 of GB/T10066.3-1988. 6.7 Water flow measurement
According to the design requirements, connect the water-cooling cable to the electric heating equipment or test bench, and measure according to 7.2.2.1 of GB/T10066.1-1988. When the length is different from the values specified in Table 1 and Table 2, the specified water flow shall be converted accordingly. 7 Inspection rules
7.1 Factory inspection items for water-cooled cables:
a) General inspection (including appearance quality, processing size, material, minimum radius of curvature, joint flatness and opening size, etc.): Quality inspection of purchased parts:
Measurement of insulation resistance:
Insulation withstand voltage test;
Measurement of DC resistance:
Hydraulic pressure test:
Tensile test (batch sampling):
Technical document integrity inspection (including product certificate, maintenance manual, spare parts diary, etc.):h)
Marking and packaging inspection.
7.2 Type test items for water-cooled cables:
a) All items of factory inspection:
Measurement of water flow:
Measurement of surface temperature rise.
3 Under normal production conditions, type tests should be carried out once every two years. However, type tests should also be conducted in the following cases: 7.3
New products are products with relatively large changes in the conventional design and process of the series products: b) Old products are re-produced:
Products that are not frequently produced are re-produced
7.4 The water-cooled cables for type tests should be randomly selected from the products that have passed the factory inspection. If there are unqualified items in the test: double sampling is allowed for re-testing. If there are still unqualified items in the re-testing, the entire batch of products shall be judged as unqualified products. 7.5 The results of factory inspection and type tests shall comply with the requirements of this standard and serve as the basis for product acceptance 8 Marking, packaging, transportation and storage
8.1 Marking
The marking of water-cooled cables shall comply with 8.1.3 and 8.1.5 of GB/T10067.1:-1988. 8.1.1 Water-cooled self-cables shall be marked with the following items at appropriate locations on their joints and outer surfaces, and the handwriting shall be clear and durable: a) Model and name of water-cooled cable:
b) Nominal cross-sectional area, in mm2
Rated voltage, in kV (applicable to SLG type): e
d) Date of manufacture:
e) Product factory number:
JH/T 10358--2002
Factory name and trademark.
8.2 Packaging
8.2.1 Before packing water-cooled cables, pour out all the accumulated water inside, blow them with compressed air, and then pack them: 8.22 The joints at both ends of water-cooled cables shall be coated with anti-rust oil, and wrapped with paper and linen before packing. Simple packaging without boxing is allowed: However, it shall be firmly tied with hemp rope or other similar measures shall be adopted to avoid damage to the joints and outer sleeves. 8.3 Transportation
8.3.1 When the water-cooled cable is packed for transportation: its bending radius shall not be less than the corresponding minimum curvature radius B.3.2 The packing must meet the rainproof requirements.
8.3.3 The water-cooled cable shall be placed flat and not suspended in the air. It shall be stored in a place without oil pollution and corrosive gas, and the ambient temperature shall be within the range of 1℃55℃.
9 Ordering and Purchasing
9.1 The ordering and supply of water-cooled cables shall comply with the provisions of Chapter 9 of GB/T10067.1-1988. 9.2 The purchaser may make the following special requests to the supplier: a) When other structural types are required (see 4.1): b) When there are special requirements for the end joint position (see 5.2.5); c) When different lengths are required (see 5.2.8): d) When different current-cutting capacity overload values are required (see 5.3.3): e) When the scope of complete set supply is required to be increased (see 5.5). The supplier shall try its best to meet the purchaser's special requirements, but the special requirements that the purchaser can actually choose shall be determined by the supplier according to their own conditions in reference to this standard. Some of them can be listed in the enterprise product standard, and the other parts shall be agreed upon by the supply and demand parties when ordering. 9.3 The purchaser shall use the water-cooled cable in accordance with the use and maintenance instructions of the water-cooled cable manufacturer, and transport and store it in accordance with 8.3 and 8.4. Under the reverse condition, if the water-cooled cable is damaged or cannot be used normally due to manufacturing quality within 18 months from the date of leaving the factory (the service life shall not exceed 12 months), the supplier shall repair or replace it free of charge.2, but the test is carried out between a soft conductor and an additional electrode, which refers to water-added, graphite coating, wrapped metal foil or other devices or measures that form equipotential on the outer surface of the outer casing. When using a water tank as an additional electrode for measurement, the length of the two ends of the water cable extending out of the water surface shall not be less than 200mm. The number and length of the tested samples shall be specified in the enterprise product standard: 6.3 Measurement of DC resistance
According to GE/T 3048.4-1994
6.4 Water pressure test
Place the water-cooled cable on a special test bench, block the joint through hole at one end, and then connect the water pipe at the other end, pressurize it to 0.6MPa: 6
Keep it for 15min. There should be no leakage, and the outer sleeve hose should not have bubbling and local outer diameter increase. Abnormal phenomenon, 6.5 Tensile test
TBT10358-2002
Connect the connected soft conductor and the joint to the two connection terminals of the tensile machine respectively, and start the tensile machine to reach the test tension specified in 5.3.5. There should be no looseness or falling off at the connection. 6.6 Temperature rise measurement
According to 6.13 of GB/T10067.2-1988, 5.10 of GB/T10066.2-1988 or 5.10 of GB/T10066.3-1988. 6.7 Water flow measurement
According to the design requirements, connect the water-cooling cable to the electric heating equipment or test bench, and measure according to 7.2.2.1 of GB/T10066.1-1988. When the length is different from the values specified in Table 1 and Table 2, the specified water flow shall be converted accordingly. 7 Inspection rules
7.1 Factory inspection items for water-cooled cables:
a) General inspection (including appearance quality, processing size, material, minimum radius of curvature, joint flatness and opening size, etc.): Quality inspection of purchased parts:
Measurement of insulation resistance:
Insulation withstand voltage test;
Measurement of DC resistance:
Hydraulic pressure test:
Tensile test (batch sampling):
Technical document integrity inspection (including product certificate, maintenance manual, spare parts diary, etc.):h)
Marking and packaging inspection.
7.2 Type test items for water-cooled cables:
a) All items of factory inspection:
Measurement of water flow:
Measurement of surface temperature rise.
3 Under normal production conditions, type tests should be carried out once every two years. However, type tests should also be conducted in the following cases: 7.3
New products are products with relatively large changes in the conventional design and process of the series products: b) Old products are re-produced:
Products that are not frequently produced are re-produced
7.4 The water-cooled cables for type tests should be randomly selected from the products that have passed the factory inspection. If there are unqualified items in the test: double sampling is allowed for re-testing. If there are still unqualified items in the re-testing, the entire batch of products shall be judged as unqualified products. 7.5 The results of factory inspection and type tests shall comply with the requirements of this standard and serve as the basis for product acceptance 8 Marking, packaging, transportation and storage
8.1 Marking
The marking of water-cooled cables shall comply with 8.1.3 and 8.1.5 of GB/T10067.1:-1988. 8.1.1 Water-cooled self-cables shall be marked with the following items at appropriate locations on their joints and outer surfaces, and the handwriting shall be clear and durable: a) Model and name of water-cooled cable:
b) Nominal cross-sectional area, in mm2
Rated voltage, in kV (applicable to SLG type): e
d) Date of manufacture:
e) Product factory number:
JH/T 10358--2002
Factory name and trademark.
8.2 Packaging
8.2.1 Before packing water-cooled cables, pour out all the accumulated water inside, blow them with compressed air, and then pack them: 8.22 The joints at both ends of water-cooled cables shall be coated with anti-rust oil, and wrapped with paper and linen before packing. Simple packaging without boxing is allowed: However, it shall be firmly tied with hemp rope or other similar measures shall be adopted to avoid damage to the joints and outer sleeves. 8.3 Transportation
8.3.1 When the water-cooled cable is packed for transportation: its bending radius shall not be less than the corresponding minimum curvature radius B.3.2 The packing must meet the rainproof requirements.
8.3.3 The water-cooled cable shall be placed flat and not suspended in the air. It shall be stored in a place without oil pollution and corrosive gas, and the ambient temperature shall be within the range of 1℃55℃.
9 Ordering and Purchasing
9.1 The ordering and supply of water-cooled cables shall comply with the provisions of Chapter 9 of GB/T10067.1-1988. 9.2 The purchaser may make the following special requests to the supplier: a) When other structural types are required (see 4.1): b) When there are special requirements for the end joint position (see 5.2.5); c) When different lengths are required (see 5.2.8): d) When different current-cutting capacity overload values are required (see 5.3.3): e) When the scope of complete set supply is required to be increased (see 5.5). The supplier shall try its best to meet the purchaser's special requirements, but the special requirements that the purchaser can actually choose shall be determined by the supplier according to their own conditions in reference to this standard. Some of them can be listed in the enterprise product standard, and the other parts shall be agreed upon by the supply and demand parties when ordering. 9.3 The purchaser shall use the water-cooled cable in accordance with the use and maintenance instructions of the water-cooled cable manufacturer, and transport and store it in accordance with 8.3 and 8.4. Under the reverse condition, if the water-cooled cable is damaged or cannot be used normally due to manufacturing quality within 18 months from the date of leaving the factory (the service life shall not exceed 12 months), the supplier shall repair or replace it free of charge.2, but the test is carried out between a soft conductor and an additional electrode, which refers to water-added, graphite coating, wrapped metal foil or other devices or measures to form equipotential on the outer surface of the outer casing. When using a water tank as an additional electrode for measurement, the length of the two ends of the water cable extending out of the water surface shall not be less than 200mm. The number and length of the tested samples shall be specified in the enterprise product standard: 6.3 Measurement of DC resistance
According to GE/T 3048.4-1994
6.4 Water pressure test
Place the water-cooled cable on a special test bench, block the joint through hole at one end, and then connect the water pipe at the other end, pressurize it to 0.6MPa: 6
Keep it for 15min. There should be no leakage, and the outer sleeve hose should not have bubbling and local outer diameter increase. Abnormal phenomenon, 6.5 Tensile test
TBT10358-2002
Connect the connected soft conductor and the joint to the two connection terminals of the tensile machine respectively, and start the tensile machine to reach the test tension specified in 5.3.5. There should be no looseness or falling off at the connection. 6.6 Temperature rise measurement
According to 6.13 of GB/T10067.2-1988, 5.10 of GB/T10066.2-1988 or 5.10 of GB/T10066.3-1988. 6.7 Water flow measurement
According to the design requirements, connect the water-cooling cable to the electric heating equipment or test bench, and measure according to 7.2.2.1 of GB/T10066.1-1988. When the length is different from the values specified in Table 1 and Table 2, the specified water flow shall be converted accordingly. 7 Inspection rules
7.1 Factory inspection items for water-cooled cables:
a) General inspection (including appearance quality, processing size, material, minimum radius of curvature, joint flatness and opening size, etc.): Quality inspection of purchased parts:
Measurement of insulation resistance:
Insulation withstand voltage test;
Measurement of DC resistance:
Hydraulic pressure test:
Tensile test (batch sampling):
Technical document integrity inspection (including product certificate, maintenance manual, spare parts diary, etc.):h)
Marking and packaging inspection.
7.2 Type test items for water-cooled cables:
a) All items of factory inspection:
Measurement of water flow:
Measurement of surface temperature rise.
3 Under normal production conditions, type tests should be carried out once every two years. However, type tests should also be conducted in the following cases: 7.3
New products are products with relatively large changes in the conventional design and process of the series products: b) Old products are re-produced:
Products that are not frequently produced are re-produced
7.4 The water-cooled cables for type tests should be randomly selected from the products that have passed the factory inspection. If there are unqualified items in the test: double sampling is allowed for re-testing. If there are still unqualified items in the re-testing, the entire batch of products shall be judged as unqualified products. 7.5 The results of factory inspection and type tests shall comply with the requirements of this standard and serve as the basis for product acceptance 8 Marking, packaging, transportation and storage
8.1 Marking
The marking of water-cooled cables shall comply with 8.1.3 and 8.1.5 of GB/T10067.1:-1988. 8.1.1 Water-cooled self-cables shall be marked with the following items at appropriate locations on their joints and outer surfaces, and the handwriting shall be clear and durable: a) Model and name of water-cooled cable:
b) Nominal cross-sectional area, in mm2
Rated voltage, in kV (applicable to SLG type): e
d) Date of manufacture:
e) Product factory number:
JH/T 10358--2002
Factory name and trademark.
8.2 Packaging
8.2.1 Before packing water-cooled cables, pour out all the accumulated water inside, blow them with compressed air, and then pack them: 8.22 The joints at both ends of water-cooled cables shall be coated with anti-rust oil, and wrapped with paper and linen before packing. Simple packaging without boxing is allowed: However, it shall be firmly tied with hemp rope or other similar measures shall be adopted to avoid damage to the joints and outer sleeves. 8.3 Transportation
8.3.1 When the water-cooled cable is packed for transportation: its bending radius shall not be less than the corresponding minimum curvature radius B.3.2 The packing must meet the rainproof requirements.
8.3.3 The water-cooled cable shall be placed flat and not suspended in the air. It shall be stored in a place without oil pollution and corrosive gas, and the ambient temperature shall be within the range of 1℃55℃.
9 Ordering and Purchasing
9.1 The ordering and supply of water-cooled cables shall comply with the provisions of Chapter 9 of GB/T10067.1-1988. 9.2 The purchaser may make the following special requests to the supplier: a) When other structural types are required (see 4.1): b) When there are special requirements for the end joint position (see 5.2.5); c) When different lengths are required (see 5.2.8): d) When different current-cutting capacity overload values are required (see 5.3.3): e) When the scope of complete set supply is required to be increased (see 5.5). The supplier shall try its best to meet the purchaser's special requirements, but the special requirements that the purchaser can actually choose shall be determined by the supplier according to their own conditions in reference to this standard. Some of them can be listed in the enterprise product standard, and the other parts shall be agreed upon by the supply and demand parties when ordering. 9.3 The purchaser shall use the water-cooled cable in accordance with the use and maintenance instructions of the water-cooled cable manufacturer, and transport and store it in accordance with 8.3 and 8.4. Under the reverse condition, if the water-cooled cable is damaged or cannot be used normally due to manufacturing quality within 18 months from the date of leaving the factory (the service life shall not exceed 12 months), the supplier shall repair or replace it free of charge.1 Water-cooled self-cables shall be marked with the following items at appropriate locations on their joints and outer surfaces, and the handwriting shall be clear and durable: a) Model and name of water-cooled cable:
b) Nominal cross-sectional area, in mm2
Rated voltage, in kV (applicable to SLG type): e
d) Date of manufacture:
e) Product factory number:
JH/T 10358--2002
Factory name and trademark.
8.2 Packaging
8.2.1 Before packing water-cooled cables, pour out all the accumulated water inside, blow them with compressed air, and then pack them: 8.22 The joints at both ends of water-cooled cables shall be coated with anti-rust oil, and wrapped with paper and linen before packing. Simple packaging without boxing is allowed: However, it shall be firmly tied with hemp rope or other similar measures shall be adopted to avoid damage to the joints and outer sleeves. 8.3 Transportation
8.3.1 When the water-cooled cable is packed for transportation: its bending radius shall not be less than the corresponding minimum curvature radius B.3.2 The packing must meet the rainproof requirements.
8.3.3 The water-cooled cable shall be placed flat and not suspended in the air. It shall be stored in a place without oil pollution and corrosive gas, and the ambient temperature shall be within the range of 1℃55℃.
9 Ordering and Purchasing
9.1 The ordering and supply of water-cooled cables shall comply with the provisions of Chapter 9 of GB/T10067.1-1988. 9.2 The purchaser may make the following special requests to the supplier: a) When other structural types are required (see 4.1): b) When there are special requirements for the end joint position (see 5.2.5); c) When different lengths are required (see 5.2.8): d) When different current-cutting capacity overload values are required (see 5.3.3): e) When the scope of complete set supply is required to be increased (see 5.5). The supplier shall try its best to meet the purchaser's special requirements, but the special requirements that the purchaser can actually choose shall be determined by the supplier according to their own conditions in reference to this standard. Some of them can be listed in the enterprise product standard, and the other parts shall be agreed upon by the supply and demand parties when ordering. 9.3 The purchaser shall use the water-cooled cable in accordance with the use and maintenance instructions of the water-cooled cable manufacturer, and transport and store it in accordance with 8.3 and 8.4. Under the reverse condition, if the water-cooled cable is damaged or cannot be used normally due to manufacturing quality within 18 months from the date of leaving the factory (the service life shall not exceed 12 months), the supplier shall repair or replace it free of charge.1 Water-cooled self-cables shall be marked with the following items at appropriate locations on their joints and outer surfaces, and the handwriting shall be clear and durable: a) Model and name of water-cooled cable:
b) Nominal cross-sectional area, in mm2
Rated voltage, in kV (applicable to SLG type): e
d) Date of manufacture:
e) Product factory number:
JH/T 10358--2002
Factory name and trademark.
8.2 Packaging
8.2.1 Before packing water-cooled cables, pour out all the accumulated water inside, blow them with compressed air, and then pack them: 8.22 The joints at both ends of water-cooled cables shall be coated with anti-rust oil, and wrapped with paper and linen before packing. Simple packaging without boxing is allowed: However, it shall be firmly tied with hemp rope or other similar measures shall be adopted to avoid damage to the joints and outer sleeves. 8.3 Transportation
8.3.1 When the water-cooled cable is packed for transportation: its bending radius shall not be less than the corresponding minimum curvature radius B.3.2 The packing must meet the rainproof requirements.
8.3.3 The water-cooled cable shall be placed flat and not suspended in the air. It shall be stored in a place without oil pollution and corrosive gas, and the ambient temperature shall be within the range of 1℃55℃.
9 Ordering and Purchasing
9.1 The ordering and supply of water-cooled cables shall comply with the provisions of Chapter 9 of GB/T10067.1-1988. 9.2 The purchaser may make the following special requests to the supplier: a) When other structural types are required (see 4.1): b) When there are special requirements for the end joint position (see 5.2.5); c) When different lengths are required (see 5.2.8): d) When different current-cutting capacity overload values are required (see 5.3.3): e) When the scope of complete set supply is required to be increased (see 5.5). The supplier shall try its best to meet the purchaser's special requirements, but the special requirements that the purchaser can actually choose shall be determined by the supplier according to their own conditions in reference to this standard. Some of them can be listed in the enterprise product standard, and the other parts shall be agreed upon by the supply and demand parties when ordering. 9.3 The purchaser shall use the water-cooled cable in accordance with the use and maintenance instructions of the water-cooled cable manufacturer, and transport and store it in accordance with 8.3 and 8.4. Under the reverse condition, if the water-cooled cable is damaged or cannot be used normally due to manufacturing quality within 18 months from the date of leaving the factory (the service life shall not exceed 12 months), the supplier shall repair or replace it free of charge.
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